Forging-machine.



G. H. CONDICT. FORGING MACHINE.

APPLICATION FILED JULY 11. 190B.

Patented Mar. 1, 1910.

raw d lll llllly Atty0 GEORGE HERBERT CONDICT, F PLAINFIELD, NEW JERSEY.

FQRGING-MACHINE Specification of Letters Patent.

Patented Mar. 1, 1910.

Application filed July 11, 1908. Serial No. 443,141.

To all whom it may concern:

Be it known that I, GEORGE HERBERT CeNnIc'r, a citizen of the' United States, residingat Plainfield, New Jerse have invented certain new and usefu Improvements in Forging-Machines, of which the following is a specificatiomaccompanied by drawin s. y

The invention although devised particularly for for ing hammers, is applicable in many of its eatures to other machines, and I do not wish to be understood as restricting the use to forgin machines.

The object of t e invention is to produce such a machine that shall be very c if'ective andsimple in operation and easily used.

In the preferred form of the invention v shown in the accompanying drawings the operator` may employ both his hands in guiding and holding the work upon the avil and bymeans of two treadles he can control not only the position of-the hammer in' respect to the work and the anvil, but also the speed of the hammer action. One of the treadlea preferably elevates and lowers the hammer casing and the other treadle controls the` speed of reciprocation of the hammer by means of an electric rheostat or controller which controls the operation of an electric motor mounted directly upon the casing'. Such preferred embodiment of the invention is shown in lthe accompanying drawings, and` from Aits description and the following claims the novel features which I desire to protect will be ap arent.'

n the drawings, Figure 1 is a side elevation of a forging machine embod ingI the invention, partly in section an artly broken awaly to illustrate details o construction. ig. 2 is a sectional detail view longitudinally through the reciprocatmg parts of the hammer mechanism, the casing, and the motor. v

The main frame of the machine is provided with a suitable work-holderv or anvil 10 and\\column 11 which is preferably hol-l low and `within which hangs the counterweight for the casin- 12 and the other parts that move mp' an down withthe casing. A counter-'weight chain running over 4a pulley'at the top ofthe column is shown at- 13. The' .counter-weight should preferabl'y be heavy enough to give a rising tend-V enc to the casing and to the treadle .15 which is pivoted on the base. of the machine and connected with the casing by the link or rod 16. A stop 17 limits the upward 4movement of the treadle 15 and consequently of the casing 12. The u per end of the link or rod 16is slotted an is pivoted to the casing by means of a thumb-nut 18 -which permits the adjustment of the casing 12 in respect to the link 16 when the thumbnutis loosened, and provides for the initial setting of the casing at different hei lits from which it may be lowered or contro led after the thumb-nut 18 has been tightened, by depressing the treadle l5.

The sleeve yportion 20, cast in one piece with the casing or attached thereto, fits and slides vertically upon the column 11. The sleeve is split and provided with screws 2l for binding it upon the column rigidly, when it is desire to use Ithe machine for drop forging, or when it is desired to hold the casing very rigidly for any pur ose. The hammer head 25 may be detachahly but rigidly secured to the free flying piston 26 and rod or shank 27 of the hammer mechanism and be guided in the sleeve 28 at the lower end of the casing 12. The piston of the' hammer travels 1n a reciprocatingcylinder 30 which is exend of the cylinder 30 is closed andl to it the connectin rod 31 is pivoted. The lower end of the cy inder 30 is`closed by the head 32 which surrounds and makes substantially gas-tight fit with the piston shank or piston rod 27, the confined bodies of air above and below the piston 26 acting as elastic cushions in a manner well understood in the Box drill and cause the reciprocation of the cylinder 30 to give what I might term an elastic reci rocation ofthe piston and hammer. Air in ets 33, which are closed by the piston 26 when in its mid position, tend to maintain the a'ir `cushions and prevent the piston 26 gradually working more and more toward one or the other end of the cylinder 30.

The connectin rod 31 is actuated by the crank shaft 35, w ich is geared, as indicated in dotted lines in Fig. 1, to the shaft 36 of the electric motor, which is (more or less diagrammatically) illustrated 1n the section in Fig. 2. The motor receives current from conductors 40 and 41 and is controlled by a rheostat or other suitable controller 42 mounted preferabl on the base of the machine and connecte by the link 43 to the control lever 44 of the outer treadle 45 which is normall upheld by the spring 46. When-so uphel the motor should be at rest, but as the treadle 45 is depressed, the motor starts and its speed is controlled by depressing the treadle 45 more or less, as desired.

The operators foot may simultaneously rest upon the treadles and 45 and he may depress either one independently or with the other. Lever 45 and the controller 42 by j determining the speed of the mot-or, determine the reciprocating speed of the hammer, that is to` say, the number of reciprocations for a unit of time. The treadle 15, on the other hand, not only serves to move the casthe cylinder 30, may thus be regulated by ing different heights of the casing for a the treadle with great delicacy to give either heavy or light blows, as desired, while theI operators hands may be occupied in guiding and holding` the work. j

By adjusting the extensible connection formed by the slotted link or rod 16 and its thumb-nutatta'chment 18 to the casing, the height of the casing may be altered and fixed at any-desired initial position with the lever 15 against its stop 17.

What I desire to claim and secure by Letn ters Patent is the following:

1. A forging machine having a column or sup ort, a casin mounted thereon and vertica ly adjustabe in respect thereto, a reciprocating hammer, actuating connections therefor carried by the said casing, and two treadles, one provided with connections and means for controlling the actuation of the hammer, and the other having connections for adjusting the casing.

' 2. A forging machine having a column or support, a casing mounted thereon and vertically adjustable inV respect thereto, a reciprocating hammer, actuating connections therefor carried by the said casing, and two treadles, one provided with. connections and means for controlling the actuation of the hammer, and the other having connections for adjusting the'caSing, the last said connections comprising means for accommodat- Agiven position of treadle.

3. A forging machine having a column or su'p ort, a casing mounted thereon and verl tica ly adjustable in respect thereto, a reciprocating hammer, actuating connections therefor carried by thesaid casing, and two treadles, one lprovided and connected with means for controlling the speed of the hammer and the other provided with means for verticall adjusting the casing.

A filrging machine-having a column or support, a casing mounted thereon and vertically adjustable in respect thereto, a reciprocating hammer, actuating connections therefor carried by the said casing, a motor also carried by the said casing, and two treadles, one provided with connections and 4means for controlling `the actuation of the nections comprisin means for accommodating di'ereiit heig ts of the casing for a given position of treadle.

6. .A' forging machine having a column or support, a casing mounted thereon and veri tically adjustable in respect thereto,a reciprocating hammer, actuating connections therefor carried by the said casing, a motor also carried by the said casing, Y,and two treadles, one provided and connected with means for controlling the speed of the hammer and the other provided with means for varying the position of thecasing vertically.v

7. A forging machine having a reciprocating hammer, a casing in respect to which the hammer lis reci rocated, a support on which the casing is a justable in the directions in which the hammer reciprocates, and'mechanism for moving thecasing in said directions,

comprising an extensible connection for ac-f commodating the said mechanism'to difter- -ioo ent initial adjustments of the casing rela'- tively to the said support. j

8. A forging machine having` a reciprocating hammer, a casing in respect to which the hammer is reciprocated, a support on which the casing is adjustable in the direc tionsin which the hammer reciprocates, and mechanism for moving the casing directions comprising atreadle pivoted on in said the support and an extensible connection fori accommodating the said mechanism to different inital adjust-ments of the casing relatively to the said support.

9. A forging machine having a support or column, a hammer and hammer casing mounted and adjustable upon said'column, a treadle havin@ a pivot fixed in respect to the column, and a connection therefrom to the said casing for moving it, said connection comprising an extensible connection.

10. A forging machine having a support or column, a hammer and hammer casing mounted and adjustable upon said column, a treadle havin a pivot fixed in respect to the column, ant va connection therefrom to the said casing for moving it, said connection comprising a link adjustably pivoted in respect to the casing.

11. A forging machine having a support or column, a hammer and hammer casing mounted and adjustable upon said column, a treadle having a pivot fixed in respect to the column, and a connection therefrom to the said casing for moving it, means for giving av risin tendency to the casing and treadle. and a imiting stop therefor.

12. A forgmg machine having a support or column, a hammer and hammer easing mounted and adjustable upon said column, a treadle having a pivot fixed in respect to the column, and a connection therefrom to the said casing for moving it, means for giving a risin if tendenc to the casino and treadle,

o y i:

a limiting stop for the tread e, and means for adjusting the said treadle connections for accommodating different positions of the casing.

13. A forging machine having a column or support, a casino', a hammer operable therein, and a tread e pivoted to the said support and provided with connections for raising and lowering the casing, said coniiections comprising means for varying the position of the caslng for a given position of the treadle.

14. A forging machine having an anvil or WorkI holder, a casing, a mechanically reciprocated hammer actuating 4 member mounted in the casing, a hammer air-cushioned in respect thereto and actuated thereby, a support upon and in respect to which the casing is movably mounted, a treadle and means actuated thereby for moving the casin in respect to the support and the anvi and a second treadle and means operable thereby for controlling the hammer.

15. A forging machine having an anvil or Work-holder, a casing, a mechanically reciprocated hammer-actuating member mounted in the casing, a hammer air-cush' ioned in respect thereto and actuated thereby, a support upon and in respect to which the casing is movably mounted, a treadle and means actuated thereby for moving the casing in respect to the support and the anvil, a motor mounted on the casing and driving the said reciprocated member, and mean'sfor controlling the said motor, comprising a treadle and connections therefrom.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses. l

GEORGE HERBERT CONDICT.

Witnesses:

F. A. Rm, FRANCES KLEINTEICH. 

